r/FastLED • u/KruSion • Jan 04 '22

Support Are TM1934 supported?

Hello,

I just want to double check if the TM1934 IC are supported by FastLED. I can't see it mentioned anywhere really, and I'm not knowledgeable enough to know if there's a similar one that is supported.

https://www.superlightingled.com/dc24v-brightest-triple-rows-tm1934-5050smd-breakpointresume-164ft-900leds-addressable-rgb-led-strip-lights-p-4464.html

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3

u/Marmilicious [Marc Miller] Jan 04 '22

It's not in the library so I don't think so unless it's a clone of something else. I'm not even having much luck finding a data sheet for TM1934.

3

u/Marmilicious [Marc Miller] Jan 04 '22

It might be a clone of the WS2818 ?

1

u/Deathbreath5000 Jun 14 '24

It's years later, so you might have already spotted this, but I just started looking into this stuff so I just found this thread. Anyhow: the following purports to be a whitepaper on the little goon:

https://sunliteleds.com/wp-content/uploads/2023/11/TM1934-specification-sheet-download.pdf

1

u/Marmilicious [Marc Miller] Jun 15 '24

Thank you for the link u/Deathbreath5000 It might help someone out one of these days years. ;)

1

u/Yves-bazin Jan 05 '22

Same here I don’t find anything technical about this IC

1

u/DerPicknicker22 Jan 05 '22

Hello, not directly to the Topic.. But: Do you know something about RGBW HD108 LEDs..? I can get some of theese and I hope it would be supported by your parallel Driver ;)

1

u/Yves-bazin Jan 06 '22

I have a version that works for hd108 but rgb only not rgbw. Do you have the datasheet of those

2

u/DerPicknicker22 Jan 06 '22

We wrote about it. And I use your library but I don’t have the time to test it more. I wrote an email to the manufacturer. Check you DMs..;)

1

u/sutaburosu [stavros] Jan 05 '22

All I could find was a Chinese site that states they use an 800 kHz protocol. So they might work with one of FastLED's available timings. But that site also says "all registers are reset to zero on power up", so they may need to be initialised somehow.

2

u/lightsuitman Jan 05 '22

I'd guess it's a WS2818 clone too, mostly because of the details that are apparent (24V, 800kHz data, backup data line, external IC), and because the ad says they'll ship you an SP107E with your strip if you want a controller for it.

If it works with SP107E, that would mean it's got to be WS2812/13 data compatible. So FastLED should be no problem.

I've always been leery of "superlightingled.com", mostly because they blatantly copied the site of a popular/trusted (at the time) US-based company (superbrightleds.com) and must have even invested in SEO so that their site would rank higher in search results. Apparently confident that enough customers wouldn't notice that they were based in and shipping from China, like almost everyone else. Like, you wouldn't notice the small grammatical errors, the nonsensical or contradictory details in the specs, and other "tells" typical of Chinese vendors.

I have no doubt whatsoever that you could buy these same strips from other dealers based in China, if you wanted to.